Firearm.



1916. a sHEETs-SHEET 2.

Patented Jan. 25

Y /wa @tu Gil/@H41 @was E. W. BRYN.

FIREARNI.

APPLICATION FILED Nov. 25, 1914.

1,169,121. Patented 1111.211916.

3 SHEETS-SHEET 3.

ZZ/y. 7.

EDWARD W. BRYN, O F NEW YORK, N. Y.

FIREARM.

Specification of Letters Patent.

Patented Jan. 25, 1916.

Application filed November 25, 1914. Serial N o. 873,986.

To all whom t may concern Be it known that I, EDWARD W. BRYN, a citizen of the United States, residing at New York, in the county of New York, State of New York, have invented certain new and useful Improvements in Firearms; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to firearms and particularly those of the magazine type.

The object of the invention is the provision of afirearm embodying an improved construction of a magazine and mechanism for operating same whereby the cartridges carried by the magazine are successively brought into firing position.

A further object of/ the invention is the provision of a rearm of the magazine type wherein the capacity of the magazine is relatively large and said magazine is aXiallv rotated and bodily shifted during the operation of the armv so as to bring substantially all portions of the magazine successively into alinement with the barrel and firing pin.

A still further object of the invention is the provision of a magazine firearm embodying an improved construction for effecting the application of the magazine to the arm and the detachment of the magazine therefrom.

With the above and other objects in view the invention consists in the details of construction and in the arrangement and combination of parts to be hereinafter more fully described and particularly pointed out in the appended claims.

In describing the invention in detail reference will be had to the accompanying drawings wherein like characters of referencedenote corresponding parts in the several views, and in which* v Figure 1 is a vertical longitudinal section through the breech portion of a magazine constructed in accordance with the invention; Fig. 2, a section on the line 2 2 of Fig. l; Fig. 3, a section on the line 3-3 of Fig. 1; Fig. 4, a section on the line 4-4 of Fig. 3; Fig. 5, a Section on the line 5-5 of Fig. 3; Fig. 6, a detail view of the trigger and the sear carried thereby; Fig. 7, a section on line 2-2, Fig. 1, looking at the forward end of the stock and disclosing the face plate secured thereto to form a portion of the rear wall of the magazine housing; Fig. 8, a section on the line 8 8 of Fig. 1; Fig. 9, a plan view partly in section ofwhat is shown in'Fig. 1, and'F ig. 10, a perspective view of the arm which carries the forward supporting roller for the magazine and which is operated by the insertion of the magazine in its housing to retract the forward supporting roller and allow the magazine to pass to its proper position before the same is engaged by the roller.

Referring to the drawings 15 indicates the stock of the improved firearm, 16 the barrel and 17 a plate threaded on the rear end of the barrel and constituting the front wall of the magazine housing of the arm. This plate is provided with a passage 18 forming a continuation ofthe bore of the barrel 16.1

The upper and lower portions of the plate 17 are provided respectively with rearward extensions 19 and 2O the free end of which latter is pivoted to the mutually lconnected termlnals of arms 21 formed integral with a plate 22 secured to the stock 15. The free end of the extension 19 is adapted to be connected to the stock 15 by means of a latch 23. By this construction it will be obvious that the barrel portion and stock portion of the arm can be swung away from each other to permit the insertion of the loaded magazine as will hereinafter appear. The forward end of the stock 15 has secured thereto a plate 24 including a rearward eX- tension 25 constituting the trigger plate and provided with a trigger slot 26. A guard 27 connects the rear of the plate 24 and the plate 25. This plate 24 covers a recess 28 formed in the stock and having. mounted therein the firing mechanism and magazine operating mechanism of the arm.

The firing mechanism of the arm embodies a firing hammer 29 suitably pivoted in the recess 28 and a trigger 30 pivoted in the slot 26 and carrying a pivoted sear 31 normally held in a given position by a spring 32 and adapted to engage a nib 33 on the lower end of the hammer 29. A spring 34 is carried by the trigger 30 and engages the upper end of the hammer 29. The trigger 30 is normally held in its forward position by means of a spring 35 anchored to the stock 15 and bearing against said trigger. A firing pin 36 is mounted in the vplate 24 and is adapted to be struck by the firing hammer 29 in the usual manner. This firing hammer 29 is also adapted to strike a pin 37 slidably mounted in the plate 24 and normally held retracted by a spring 38, the purpose of which pin 37 will presently appear.

The magazine operating mechanism comprises a longitudinal shaft 39 mounted in the stock 15 and having its forward end projecting into the recess 28. Rotatably mounted on the forward end of the shaft 39 is a crown gear 40 and fixed to this gear is a ratchet wheel 41 with which coperates a pawl 42 secured to the trigger 30. Mounted in the stock 4l5 and extending at right angles to the shaft 39 is a shaft 43 one end of which extends into the recess 28 and has rotatably mounted thereonl a gear 44 meshing with the gear 40. This gear 44 extends through an opening 45 in the plate 24 and projects a slight distance beyond the forward face of said plate. Mounted in the plate 24 parallel to the shaft 43 is a shaft 46 one end of which extends into the opening 45 and has rotatably mounted thereon a disk 47 which also projects a slight distance beyond the forward face of the plate 24. The front face of the plate 24 has formed therein a vertical vguide groove 48 the lower end of which lis directed laterally and enlarged as at 49, said enlarged end of the'groove opening through the edge of the plate. A similar guide groove 50 is formed in the rear face of the plate 17 and terminates at its lower end in a laterally directed portion 51 running substantially parallel to the laterally directed portion 49 of the groove 48. Also formed in the rear face of the plate 17 is a groove 52 disposed at right angles to the groove 50 and communicating at its inner end with said groove 50 and opening through the edge of the plate 1.7. Another groove 53 is formed in the rear face of the plate 17 and extends parallel to the groove 50. This groove 53 intersects the groove 52 and is partially covered by removable stop plates 54. The upper end of the groove 53 terminates in a laterally directed portion 55, while the inner wall of the groove 53 is provided with recesses 56, 57 and 58. Pivotally mounted in the outer end of the groove 52 is an arm 59 which has formed integral with its free end a cross arm 60 carrying a plurality of guide iin-gers 61 engaged respectively'in the recesses 56, 57 and 58. The upper end of the cross arm 60 is provided with a lateral extension 62 disposed in the laterally directed portion 55 of the groove 53 and rotatably mounted on this extension 62 is a roller 63. The cross arm 60 is normally held against the stop plates 54 by means of springs 64 encircling the guide fingers 61 respectively.

The magazine of the arm is shown as comprising a cylindrical body A through the center of which extends a trunnion rod 65 the ends of which project beyond thev front and rear ends of the body A respectively. The forward end of the rod 65 is provided with a transverse groove 66 and a circumscribing flange 67. Extending longitudinally through the body A is a plurality of cartridge receiving chambers 68. These chambers are spirally arranged about the trunnion rod 65. Formed in the rear end of the body A is a spiral rack 69 which col operates with the gear 44. Also formed in the rear end of the body A is a spirally arranged groove 70 which receives the disk or roller 47. Formed in the forward end of l latch 23 is disengaged and the stock and barrel portions of the gun are swung away from each other. The magazine is then manually applied by engaging the flange 67 in the groove 52 with the arm 59 sliding in the groove 66. The Hanged end of the trunnion rod 65 is then moved to the inner end of the groove 52 and during this movement of the magazine the roller 63 will be shifted out Lof the path of the advanced portion of the magazine until the forward end of the trunnion rod 65 is at the top of the groove 50 when the arm 59 and cross arm 60 will be released to the influence of the springs 64 and the roller 63 advanced into the groove 71. In this position of the body A the innermost chamber 68 willbe in position to be moved into alinement with the passage 18' upon operation ofthe firing mechanism. The barrel and stock portions ofthe glm are then swung together and locked by means of the latch 23. In this'closed position of the stock the gear 44 will engage the rack 69 while the roller 4 7 will, Iengage in the gro-ove 70. By this construction it will be obvious that the rollers 63 and 47 will support the magazine at the desired elevation.v

Upon operation of the firing mechanism or in other words upon retraction of the trigger 30 the pawl 42 will engage the ratchet wheel 41 and rotate the latter which will in turn rotate the gear 40 and the gear 44. This rotation of the gear 44 will rotate the body A to bring the innermost chamber 68 in line with the passage 18 just previous to the release of the firing hammer 29. When this firing hammer -is released the upper end thereof will move forward and strike the firing pin 36 to explode the car-I tridge. Just before the ring hammer 29 strikes the firing pin 34 it will engage 'the pin 37 and force same -into one of the recesses 72 so as to lock the body A against any rotation during the actual explosion of the cartridge. Upon each retraction of the trigger this operation will be repeated until all the cartridges contained 1n the chamber 68 have been iii-ed. As the body A is rotated in the firing of the gun the terminals of the trunnion rod 65 will move downwardly inthe grooves 48 and 50 and when the last cartridge has been fired the next retraction of the trigger will disengage the gear 44 from the rack 69 and also the rollers 47 and 63 from the groove 70 and 7l respectively. The terminals of the trunnion rod 65 will then slide through the laterally directed portions 49 and 51 of the grooves 48 and 50 and the magazine discharged from the gun.

What is claimed is 1. In a magazine firearm, the combination of a rotatable and bodily movable magazine, means for intermittently rotating the magazine, and means for simultaneously moving v said magazine bodily in a plane at right angles to the longitudinal axis of the firearm.

2. In a magazine firearm, thecombination of a rotatable and bodily movable magazine, a firing mechanism including a trigger, means operated by the retraction of the tribger for rotating the magazine, and means for simultaneously moving said magazine bodily in a plane at right/angles to the lon,

gitudinal axis of the firearm.

3. In a magazine firearm, the combination of a rotatable and bodily movable magazine, means for intermittently rotating the magazine, means for simultaneously moving said magazine bodily in a plane at right angles to the longitudinal axis of the firearm, and

Ameans for maintaining the axis of rotation of the magazine during its bodily movement in a given plane extending longitudinally of the rearm.

4. In a magazine firearm, the combination of a rotatable magazine, means for rotating the magazine, and means for automatically discharging the magazine from the firearm after the last cartridge therein has been posed in a given plane extending longitudinally lof the firearm and having their outer ends directed laterally and opening through the side edges ofthe housing, a rotatable magazine disposed in said housing and having a central trunnion rod the terminals of which are movable in said grooves respectively, said magazine being provided with rorresponding spiral grooves on its front and rear ends, supporting elements carried at the front and rear of said housing at corresponding points and engaging in corresponding spiral grooves to support the magazine, and means for intermittently rotating said magazine.

7 In a magazine firearm, a magazine having a plurality of spirally arranged cartridge receiving chambers, and means for simultaneously rotating and bodily shifting the magazine to successively present the cartridges for firing.

8. In a magazine firearm, a magazine having a plurality of spirally arranged cartridge receiving chambers, means for simultaneously rotating and bodily shifting the magazine to successively present the cartridge for ring and means for positively locking the magazine against rotation and bodily movement at the instant of firing.

In testimony whereof, I aiix my signature, in the presence of two witnesses.

EDWARD W. BRYN.

Witnesses:

Mrs. E. W. BRYN, C. J. BRYN. i 

